* Notifications now display errors and the output of the failed command.
* CI configs for GitHub and Woodpecker
* Added `version` subcommand
* Console logging can be disabled by setting `console-disabled` in the
`logging` object
* If Host was not defined for an incomplete `hosts` object, any commands
would fail as they could not look up the values in the SSH config files.
- expanding `environment` vars in cmd section
- support for connecting to one proxy/bastion host
- better notification text layout
- better error message on private key failing to open
- Added `cron` command to run lists with `cron` time specifed
- Changed `-c` flag to `-f` flag for passing config file
- Modified some config keys
- cmdArgs -> Args
- Got rid of `hosts.config`
- better SSH handling
- respects values in config file
- Added exec command to execute individual commands
- Added --lists, -l flag to backup command
- Run command lists (#1)
- Small touchups and documentation
- Added backup sub-command
- Added better parsing for config file
- Basis for notifications, no running after a command yet
- Updated docs and added License
